Hello,I need a help of an expert please it's urgent for me and I need the correct and clear answer please and specially specially for the first question please help me

Question 1: I need the " Domain class diagram" and "use case diagram" for the system

Question 2: what are the benefits of metrics in software engineering?

Question 3: What do you think are the characteristics of the ICONIX process? What are its advantages and disadvantages?

Question 4:

Analysis and Design The WSP is a collection of overlapping applications for warehouse management, its Entity/Relationship diagram representing the entities involved in is shown in the figure 2. 1 n n 1 CUSTOMER Owns ITEM stored at PLACE Figure 2 All the functions (element processes) of the WSP system are listed in figure 3. - Add customer - Delete place Change customer data - Print customer item list Delete customer - Print bill Receive payment Print stored items list Deposit item Query customers Retrieve item Query customer's items Add place Query places Change place data Query stored items 1 Figure 3 (1), please draw the domain class diagram and (2), please draw the use case diagram for the system. Software engineering is a layered technology, as described in the figure 1, please briefly describe each layer using your word. Tools Methods Process Quality focus Figure 1